I will be returning to work when my little one is 4 months old. So she will need to be drinking my breast milk from bottles at that time. So here are my ton of questions:

When is a good time to introduce the bottle? (I have read 5 weeks is a good time, if so, I need to start shopping/looking for bottles now)

When you introduce the bottle, do you still breastfeed too? Like 50% bottle, 50% breast? Or is it a more gradual introduction to the bottle? Does any of that create nipple confusion?

What brand of bottle is best for breastmilk?

What brand of storage bags are good?

Sorry for all the questions, I just realized my little one turns 4 weeks tomorrow, and if 5 weeks is when I should introduce the bottle, then I have a lot of things to learn about bottles, storage, pumping, etc. Also, would need to start my (online) shopping soon!